21-22高一·湖南·课后作业
1 . 记
为平面上所有点组成的集合并且
,
,说明下列集合的几何意义:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59c02acf11f2ae4e26604825998c8fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eed5d7c5b39c44baf8a54faaebab01e.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073783ce61332e216aef7df39aa39836.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202400c0387ffe2dfc19584e12208442.png)
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21-22高一·湖南·课后作业
2 . 下列命题中,哪些命题是“四边形是矩形”的充分条件?
(1)四边形的对角线相等;
(2)四边形的两组对边分别相等;
(3)四边形有三个内角都为直角;
(4)四边形的两组对边分别平行且有一组对角互补.
(1)四边形的对角线相等;
(2)四边形的两组对边分别相等;
(3)四边形有三个内角都为直角;
(4)四边形的两组对边分别平行且有一组对角互补.
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21-22高一·湖南·课后作业
3 . 下列各组的3个集合中,哪2个集合之间具有包含关系?
(1)S={-2, -1, 1, 2}, A={-1, 1}, B={-2, 2};
(2)S=R, A={x|x≤0}, B={x|x>0};
(3)S={x|x为整数},A={x|x为奇数},B={x|x为偶数}
(1)S={-2, -1, 1, 2}, A={-1, 1}, B={-2, 2};
(2)S=R, A={x|x≤0}, B={x|x>0};
(3)S={x|x为整数},A={x|x为奇数},B={x|x为偶数}
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21-22高一·湖南·课后作业
4 . 设
,
,
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41ab9136cb52edb3961bdb71e538536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f626ed91fa81b63d93ee66e380972fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94835a63136119d41bc6610a5447616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639dfb30ade61b8c184682c8516e8d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4a56c2033f8c483a893bd2b3cedf08.png)
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21-22高一·湖南·课后作业
5 . 设
是由6的全体正约数组成的集合,写出
的所有子集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a829fdd8ec0f3b7ede883cf2c3e53b.png)
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2022-02-23更新
|
396次组卷
|
5卷引用:1.1.2 子集和补集
(已下线)1.1.2 子集和补集(已下线)专题10 集合间的基本关系-2022年暑假初三升高一数学衔接知识自学讲义(人教A版2019)(已下线)1.2 子集、全集、补集-2022-2023学年高一数学新教材同步配套教学讲义(苏教版2019必修第一册)1.2 集合间的基本关系练习湘教版(2019)必修第一册课本习题1.1.2子集和补集
21-22高一·湖南·课后作业
6 . 利用不等式的性质证明下列不等式:
(1)若
,
,则
;
(2)若
,
,则
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f75807858b7804a1ad2039c41f323a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5197a4059d79e7ad2954b387d17d1ac8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ab74d7f34dda733dca9aa3dac2a282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557f1c548c99f9b3a96ad97155617148.png)
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2022-02-23更新
|
617次组卷
|
8卷引用:习题2.1
(已下线)习题2.1(已下线)专题15 等式性质与不等式性质-2022年暑假初三升高一数学衔接知识自学讲义(人教A版2019)(已下线)突破2.1 等式的性质与不等式的性质(课时训练)(已下线)3.1 不等式的基本性质 (1)(已下线)2.1 等式性质与不等式性质精练-【题型分类归纳】(已下线)专题2.1 等式性质与不等式性质-举一反三系列(已下线)第05讲 等式性质与不等式性质(7大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)湘教版(2019)必修第一册课本习题 习题2.1
21-22高一·湖南·课后作业
7 . 某商品计划提价两次,有甲、乙、丙三种方案,其中
.经两次提价后,哪种方案提价的幅度大?为什么?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3fc6114cb8f086faab5828f8297f8e.png)
方案 | 第一次提价 | 第二次提价 |
甲 | ||
乙 | ||
丙 |
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21-22高一·湖南·课后作业
8 . 比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1567f3ba3dd484d885a134239b6a7496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41d3f5345d3af16392fc6da4e669459.png)
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21-22高一·湖南·课后作业
9 . 已知
,
为非空集,
为全集,且
,用适当的符号填空:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
______
; (2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
______
;
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
______
; (4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
______
;
(5)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ce9bf72cf6b30c2e14921657459ad.png)
______
; (6)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4109b7e801d42d24f37fc0cfde87aedc.png)
______
;
(7)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7405d9c4183738865f6b14a5b8e97964.png)
____ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e8a0a95931760d0ea46a8366fde2e4.png)
____
; (8)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
____ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
____
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb584b83ae783a0ec8a9b4628b7fca3e.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e25faf6c06310292eea7b9b03671dd4.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582ce9bf72cf6b30c2e14921657459ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085353be6adc4ee83749a7d6fe117bf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4109b7e801d42d24f37fc0cfde87aedc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(7)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7405d9c4183738865f6b14a5b8e97964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e8a0a95931760d0ea46a8366fde2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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21-22高一·湖南·课后作业
10 . 在N,Z,Q,R中任取两个,求它们的并集和交集.
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